20‑Pack Sterile Microppose 90 mm Petri Dishes Our 20-pack of sterile 90mm disposable Petri dishes is ideal for agar culturing, mycology, lab work, and research environments. Made from high-clarity polystyrene with vented lids, these dishes arrive stacked and ready for immediate use. Product Features Sterile and non-treated Size: 90mm x 15mm Material: Medical-grade clear polystyrene Vented lids Packaged in a cleanroom environment Ideal For Agar pouring and media prep Spore germination and culture transfers Mycology labs, educational use, or hobbyist setups Use with pre-poured agar or custom blends Quick Start & Usage Tips Unpack Carefully: Open in a clean environment to maintain sterility. Add Media: Pour in agar or growth medium and allow it to solidify. Seal & Label: Use Parafilm or Laboratory Poly Film tape around the rim and mark with date and strain. Dispose Properly: Autoclave or disinfect before disposal after use. What’s Included 20 sterile disposable Petri dishes (90mm x 15mm) Vented lids for secure stacking and gas exchange Need sterile agar to go with these dishes? Shop pre-poured agar plates here.